Box-nailing machine



5 Sheets-Sheet 1.

(No Model.)

W. S. ,DOIG. BOX NAILING MACHINE.

Patented Oct. 13, 1891 5 Sheets-Sheet 3. W. S. DOIG. BOX NAILINGMACHINE.

Patented Oct. 13, 1891.

(No Model.)

(No Model.) 5 Sheets-Sheet 4.

W. S. DOIG.

BOX NAILING MACHINE.

No. 461,018. Patented Oct. 13,1891.

19M714 a vem poz v a/ W/ v I 1351 4611 50611213 ma NORRIS vz'rms 20..wm'o-umm, WAsmMnYCrL c UNITED STATES PATENT OFFICE.

XVILLIAM DOIG, OF BROOKLYN, NEV YORK.

BOX-MAILING MACHINE.

SPECIFICATION forming part'of Letters Patent No. 461,013, dated October13, 1891.

Application filed June 20, 1890. Serial No. 356,171. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM S. DOIG, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Box-Nailing Machines, ofwhich the following is a specification.

My invention relates to box-nailing machines of the class illustrated inLetters Patent Nos. 342,230 and 342,268, of MaylS, 1886, granted toThomas L. Smith and myself.

. My invention contemplates certain improve ments on the machines shownin these patents, which are to be hereinafter fully set forth. Thesubject-matter deemed novel is set forthin the claims.

In the accompanying drawings, Figure 1 is a front elevation of myimproved machine. Fig. 2 is a side elevation. Fig. 3 is an enlargedfrontview of the mechanism for sup plying nails to the nail-deliverytubes. Figs. 4, 1*, 5, 6, and 7 are detail views of certain parts of thenail-delivery mechanism, Fig. 4 being a section on the line i/ y of Fig.i. Fig.

8 is a detail view of one of the nail-supply pans. Fig. 9 is alongitudinal central section of the same. Fig. 10 is a front viewthereof. Fig. 11 is a detail view, with parts broken away, of thenail-carryi n g plates or con veyers and the frame-work in which theyare mounted. Fig. 12 is a detail view in section thereof. Fig. 13 is adetail view, on an enlarged scale, showing the bottom of the front partof one of the nailconveyers. Figs. 1a and 15 show further details ofthis part of the apparatus. Figs. 10, 17, 18, 19, and are detail viewsof certain parts of the mechanism for supplying nails individually tothe nail-con veying tubes. Fig. 21. is a view of the interior of anail-box. Fig. 22 is a vertical central section through one of theseboxes. Figs. 23 and 2% are detail views of one of the hammers and thecrosspiece on which it is mounted, and Fig. 25 is a detail view of theconnections between the drivin -shaftand the vertically-reciprocatingcross-head.

The frame of the machine is suitably shaped to support the mechanismthereof, as shown, consisting of an upright A, a side or end piece A, across connecting-piece A, and a top piece A The upright A is mounted ona bed-plate A, and carries a bracket a, in which is a bearing a for themain driving-shaft B. A pulley B is loosely mounted on the drivingshaft,and is connected to rotate therewith by a clutch O. The clutch isconnected with a treadle c by an arm 0, carrying a pin or roller eengaging a groove 0 in the clutch, an arm 0', secured to-or forming partof the arm 0, and a link 0 which is pivoted to the arm 0 and to thetreadle. The armscand c are pivotally supported on the bracket a.

An arm (Z on the shaft B is adapted to engage with a roller 6 on an arm(Z of the arm a. The purpose of this arrangement is to permit the clutchto be automatically disengaged from the driving-shaft.

The shaft B extends through a bracket B and carries on its outer end apinion B*, which gears with a toothed wheel B provided with a crank-armb; To this arm is secured a cord or wire T passing over pulleys b andconnected to the nail-carrying pans. As the crank I) is revolved, thepans are raised and lowered for a purpose hereinafter described.

A table D, on which the box is to be placed while being nailed, isconnected with the frame and adapted to slide vertically thereon. It isprovided with a downwardly-extendiug rod D, screw-threaded at its lowerend and enteriug a bracket D At its upper end the rod D is connectedwith a sprocket-wheel G whichis connected with a sprocket-wheel G on thebottom of the table by means of a chain G A hand-wheel G is secured tothe shaft G" of the sprocket-wheel G, and by turning this wheel thescrew may be rotated so as to adjust the table D vertically. An inclinedsupplemental table D is supported on the table D and rigidly securedthereto. A screwshaft G, extending through a bracket G on the under sideof the inclined table, is provided with a hand-wheel G by which it maybe turned. The screw-shaft extends through the downwardly-extendingscrew-threaded end G2 of a slide By operating thehandwheel the slide Grmay be adjusted from one end of the table to the other, which isprovided with a slot g to admit of this adjustnient.

Onthe inner end of the shaft B is a crankwheel B, the crank-pin b ofwhich is connected with a pitman F, pivotally connected at its lower endto the vertieally-reciprocating cross-head F. As shown in Fig. 25,yieldin g blocks of rubber are interposed in the connections of thepitman F to relieve the strain and shock when the cross-head isreciprocated. The cross-head F carries a series of hammers I. Each ofthese hammers is provided with a flanged head-piece I, as shown in Fig.23, adapted to enter a groove in thefront of the cross-head F. A plate Iis secured to the front of the cross-head and holds the heads of thehammers in position; but in order that any or all of the hammers may beremoved the plate is'formed with vertical slots I through which extendthe set-screws 1 By loosening the screws the plate may be raised so thatits lowerend rises above the heads of the hammers, and they maybereadily removed. Then the plate is lowered and the screws tightened, thehammers are firmly held in the cross-head and may be reciprocatedVertically therewith.

Nail-boxes H, one for each hammer, are secured to a cross-beam H,attached to the main frame, and these boxes are arranged to receive thenails and to permit the hammers to reciprocate through them. As shown inFigs. 21 and 22, each nail-box is formed with two channels H and Hthrough which the nails and hammer may pass. Jaws H and H are pivoted at1-1 and H respectively, and springs H and H tend to force the lowerendsof the jaws together, but permit of their being separated and movedabout their pivots when the nail is driven by the hammer. The jaw H hasa slight movement independent of its pivotal connection by means of anopen bearing, as shown at H, so that the jaw may yield should the nailsclog in the box. An arm 1* is secured to the cross-beam H and extendsdownwardly therefrom to form an abutment or guide for holding the box'in position on the table.

The nails are conveyed to the nail-boxes by means of tubes J, which arepreferably flexible. These tubes receive the nails from nail-deliverymechanism, and they are connected to and supported by the frame incrosspieces K K. The cross-pieces K K are provided with recesses throughwhich the tubes pass, and the front ends of these recesses, are closedby caps j, secured by means of setscrews j. \Vhen the screws are tight,the tubes are firmlyheld in position but by loosening the screws andallowing the caps to drop the tubes may be individually removed fromtheir supports.

A top piece A of the frame is extended beyond the side or end piece Aand is provided at each end with a bracket L and with a third bracket Lover the end piece A A series of brackets or plates L L L are secured tothe brackets L and L and form bearings for mechanism presently to bedescribed.

In the right-hand end of the machine in the brackets L and L is mounteda shaft M.

This shaft carries cams N, N, and N The cams N and N are secured to asleeve M by means of set-screws X and X. The hubs of the cams N and Nare formed with ratchets M with which engages a pawl M carried by alever' N The sleeve M may be secured to the shaft M by a set-screw Y.Normally the cams N and N move with the shaft; but in order that thecams may be adjusted relatively to the shaft the set-screw Y may beloosened,'and by operating the lever l which carries the pawl M the camsmay be moved about the shaft M so as to vary their relation to themechanism which they operate or throw them out of operative connectiontherewith.

The cam N is secured to the shaft M inside the bracket L On this cam isan arm 0 connected by a pivot-pin O to a pitman 0, connected to theverticallyreciprocating cross-head F, by a pivotal connection 0 As thecross-head is reciprocated, a vibrating motion is imparted to the cam Nand its shaft M and, consequently, alike motion is imparted to the camsN and N. A cam-shaft M is mounted in the brackets L L and carries cams NN the cam N being on the end of the shaft M inside the bracket LMechanism N for adjusting the cam N relatively to its shaft M,substantially like that described in connection with the shaft M, may beprovided.

Horizontal rods P P P extend through the brackets L L L and are free toslide therein. The rods P and P are adapted to engage with the cams Nand N, respectively. Springs QQ' normally hold the rods in engagementwith the cams. The rod P is provided with a roller Q which engages thecam N The rod P is normally held to cause the engagement of the roller Qwith the cam N by a spring Q Rods P and P are adapted to slidehorizontally in the brackets L The rod P is normally held by a spring Qin engagement with the cam N The rod P carries a roller Q, which engageswith the cam N and is normal] in en a ement with this cam by a spring QAs the cross-head F reciprocates vertically, an oscillating or vibratingmovement is given to the cam-shaft M and the cams thereon, and throughthe rod 0 a similar movement is given to the cam-shaft M and its cams.

Before describing the mechanism which the rods P P, P P and P operate, Iwill describe the mechanism which holds the nails and carries theni tothe tubes 'J.

Two nail-conveyers S and S are provided in this machine, the one abovethe other. The conveyer S is supported at its front end in suitablehearings on the frame and also by vertical rods R, hinged to the top ofthe main frame and having slots S at their upper ends. Through theseslots extend pivot-screws S attached to the conveyer, which may beadjusted vertically in the slots to vary the inclination of theconveyerS. Rods R in like manner are provided with slots S and with adj nstablebearing-screws S The construction of one of these conveyers is shown inde- IIO tail in Figs. 11 tov 15 inclusive. Vithin the outside frame S isan inside frame S, and to these frames are secured metallic plates S Sand S The plates S are securedto the frame S and the plates S to theframe S Adj usting-screws S, extending through the frame S and bearingagainst the frame S", admit of the adjustment of these'frames relativelyto each other, so as to vary the space or channel S between the plates Sand S As a further means of adjusting the plates, I may provide cleatsor bars S secured to the plates S and adj usta-bly secured to the framesS by screws S By this means the plates may be adjusted without movingthe frame S relatively to the frame S. The delivery ends of the channelS may be opened and closed by fingers T, pivoted to the front of theframe S, as shown in Fig. 12. \Vhen the end of the finger enters thechannel 8, as shown in Fig. 12, it is closed and the passage of nails isobstructed; but when turned aside, as shown in Fig. 11, the nails maypass freely through the channels.

, On the under side of the plates S S S and S are secured guide-flangesT and T which serve to keep the nails in order as they are deliveredfrom the channels. These flanges diverge or flare at their inner ends.At their rear ends the frames S are provided with brackets having openbearings T in which the bearing-studs T' of the pans E rest.

It will thus be seen that the nail-conveyers form the supports for thefront ends of the pans, and that when the conveyers are adjustedvertically the pans are correspondingly adjusted. It will also be seenthat as the bearings are open the pans may readily be removed, and thatthey have a slight vertical play independent of the conveyers. series ofnail-pans E are provided at their front ends with bearing-studs T,adapted to rest in the open bearings ofthe nail-conveyers. At their rearends the pans are formed with hooks T which extend over a rod T,connected with the cord or wire T which is in turn connected with thecrank l), as before mentioned. When this crank is revolved, the pans areraised and lowered at their rear ends about their pivotal connectionwith the conveyers S and S, so that the nails are shaken up anddelivered to the conveyer-s. Each of these pans is preferablyconstructed as follows: The real-end of a pan is provided with aninwardly-inclined back piece and at the front with ahorizontally-sliding plate Qt", slotted at It, and through these slotsextend adjusting-screws a. A plate it is secured to the plate a andextends horizontallybeneath the pan. At its inner end the plate u isconnected with a cross-piece it". Another plate 1.1, parallel with theplate u, is connected with the pan in a fixed relation thereto, and issupported at its rear end by a cross-piece 1L Above the plates it and uare beveled plates "a These act as guides for the nails, the shanks ofwhich extend through the slot between the beveled plates 21 and theplates 10 and it.

WVhen the pans E are lifted, the nails in the slots just mentioned passto the slots or channels S in the conveyers S and S, and pass down theseconveyors into position to be delivered to the tubes J. -Each conveyer Sand S is provided with a series of pans which deliver the nails thereto,and a set of tubes J for each conveyer is provided for carrying thenails to the hammer-boxes; but, as shown in Fig. 1, the arrangement issuch that nails from the upper conveyer are carried to the same nail-boxas nails from the lower conveyer, the lower ends of the tubes beingconnected to a Y-shaped coupling-piece J By this arrangel'nent nails ofdifferent sizes or kinds may be delivered to the same nailboxes.

The delivering apparatus for one kind of nails may be closed while thedelivering apparatus for the other kind is in use by mechanismhereinafter described.

I will now describe the mechanism for delivering the nails individuallyto the nailconveying tubes.

To either the bar P or P is secured by screws V a series of blocks V, towhich are pivoted by pins V stops V. Springs V interposed betweenlaterally-projecting arms of these stops and brackets on the blocks V,normally hold the stops in a vertical position to normally close thechannel-ways S As the cams N and N are oscillated, the bars P and P arereciprocated and move the stops V alternately away from and in front ofthe channels. \Vhen the channels are unobstructed by the fingers T,nails maybe delivered from the channels to the tubes J when the stops Vare withdrawn therefrom. Similar stop mechanism is mounted 011 the rod Pand operated in a similar way by the cam N Figs. l8, l9, and 20 aredetail views, in perspective, showing clearly the arrangement by whichthe stops V obstruct the channels S of the nail-conveyers.

In order that nails may be delivered independently to theconveying-tubes J and without interferencel provide whatI call pointers, which separate the nail at the end of a channel from that directlybehind it when the stop V is removed from the front of the' channel. Bythis arrangement when the stop is removed the first nail in the seriesdrops into a tube J, but the other nails in the channel are held back bythe pointer. pointers for thelower set of nail-channels are carried bythe bar 1.

The details of construction are shown in Figs. 16 to 20, inclusive,where a hanger V is shown as pivoted to the bar P and provided at itslowerend with a rearwardly-projecting bifurcated arm V and at its upperend with a latei'ally-proj'ecting arm V, between which and the bar P isinterposed a spring V The hanger V is so pivoted to the bar P that ithas a little play, so as to These.

ICC

IIO

rock slightly about its pivot against the force of the spring V In thebifurcated arm V is mounted a block V having a flange V bearing againstone side of the arm. The block also carries a screw .V with whichengages a screw-threaded lever V the inner end of which bears againstthe opposite side of the arm V. In this way the block V may beheldsecurely in the arm V and may be adjusted therein. Projectinglaterally from the block V is a pin or pointer V tapered at its outerend and adapted to pass between the first and second nails in a channelS and separate them.

WVhen the bar P is reciprocated by the cam N the pointers or pins Valternately pass between the nails in the channels S and. the machine isso timed that the pointers thus pass between the nails when the stops Vare removed from the front of the channels. In this way nails aredelivered independently or separately to the nail-conveying tubes.

Should one of the pointers strike a defective nail, the hanger V willswing on its pivot against the force of the spring V and will givesufficiently to allow the bar P to reciprocate as usual and actuate theother pointers in the series, while this one remains inactive until thedefective nail or obstruction is removed, when the spring Y returns thismechanism to its normal position to actwith the others. In like manner,should any one of the stops V meet with an obstruction, the springs Vwill allow it to yield and remain inactive while the other stops areoperating as usual. Mechanism for separating the nails in the channelssimilar to that just described is carried on the bar P operated by thecam N and need not be specifically described.

The apparatus described is compact in construction and efficient inoperation.

The hammer-boxes may each be supplied with nails from two sources by thetubes J J, and nails from any set or any series of nailchannels in theconveyers may bereadily closed or opened, and the cams for operating thestop mechanism, being adjustable on their shafts, may be readily throwninto or out of action without stopping the main driving mechanism.

I claim as my invention- 1. The combination, in a box-nailing machine,of the main frame, a table adjustable vertically thereon, a supplementalinclined table secured to the top of the vertically-adjustable table, aslide adjust-able along the inclined surface of the supplemental table,and box-nailing mechanism located above I both tables and having hammersreciprocatscrew-shaft extending through the screwthreaded end of theslot and through a bracket on the inclined table, a hand-wheel foroperating the screw-shaft, and box-nailing mechanism located above bothtables and having hammers reciprocating vertically toward and from them.

3. In a box-nailing machine, the combination of a series of hammershaving flanged heads, a grooved cross-head in which the hammer-heads areadapted to fit, a plate for holding the hammer-heads in position on thecross-head, and adjusting -screws extending through vertical slots inthis plate, whereby the plate may be lifted vertically and permit theremoval of any one orall of thehammers, substantially as set forth.

4. In a box-nailing machine, the combination, in a nail-box, of thepivoted jaws, springs for holding them together, and an open bearing forone of the jaws to prevent the clogging of nails in the box,substantially as set forth.

5. In a boxnailing machine, a nailconveyer consisting of the combinationof an outer frame, an inner frame, cleats adj ustably secured to theinner frame, plates secured to the cleats and the inner and outerframes, and devices for adjusting the inner frame relatively to theouter frame, substantially as set forth.

6. In a box nailing machine, a nail -conveyer having a nail-channel, avibrating stop V, adapted to alternately open and close the channel, anda stop-finger T, connected with the frame of the conveyer and adapted tobe moved into or out of said channel, substantially as set forth.

7. The combination of a frame, a series of nail-channels therein, aseries of vibrating stops for alternately opening and closing thechannels in the series, and aseries of pivoted stop-fingers secured tothe frame and adapted to open and close said channels individually,substantially as set forth.

8. The combination of a frame, a series of nail-channels therein, andflanges below the channels with their inner ends diverging or flaring,substantially as set forth.

9. The combination of a frame, a nail-clian nel therein, a nail-supplypan pivotally connected with said frame, supports for the front end ofthe frame, adjustable supporting-rods for the rear ends of the frames,and flexible supports for the rear ends of the nail-supply pans, theorganization being such that the frames having the nail-channels and thenailsupply pans are adjusted vertically and simultaneously by theadjusting-rods, substantially as set forth.

10. In a box-nailing machine, the combination of the nail-supply pans,the hooks on the rear ends thereof, the rod extending through saidhooks, the main driving-shaft of the machine, and a flexible connectionbetween the set forth.

11. In a box-nailing machine, the combina tion of two frames arrangedone above the other, nail-channels therein, means for independentlyraising and lowering said frames, means for opening and closing saidchannels, nail-supply pans for the nail-channels in the two frames, andmeans for actuating the nail-supply pans, substantially as set forth.

12. In a box-nailing machine, the combination of two frames arranged oneabove the other,.nail-channels in these frames, means for independentlyraising and lowering said frames, nail-supply pans for the channels inthe two frames, the main driving-shaft, flexible connections between thedriving-shaft and the nail-supply pans, mechanism for automatically andindependently opening and closing the nail-channels, nail-boxes, hammermechanism, and conveyers for carrying nails from the nail-channels tothe nail-boxes, substantially as set forth.

13. In a nail-supply pan, the combination of a fixed plate, anadjustable front plate, and a plate parallel with the fixed platesecured to the front plate and adjustable therewith, substantially asset forth.

14. In a nail-supply pan, the combination of a fixed plate, anadjustable front plate, a plate parallel with the fixed plate secured tothe front plate and adjustable therewith, and the bars a a on which theinner ends of the plates rest.

15. In a hox'nailing machine, the combination, with a nail-box, of twoor more nail-eonveying pipes or tubes leading from separatenail-channels to the nail-box to carry nails of different sizes theretoand means for feeding nails to the tubes, substantially as set forth.

16. The combination of a series of nail-channels, stops for opening andclosing the front ends of these channels, a rod to which these stops areconnected, a cam for operating the rod, and means for adjusting the camto throw it into and out of operative connection with the rod,substantially as set forth.

17. In a box-nailing machine, the combination of thevertically-reciprocatingcross-head and hammers, a series ofnail-channels, stops for opening and closing these channels, arod towhich the stops are connected, a cam for actuating this rod, connectionsbetween the cam and the vertically-reciprocating cross head, and meansfor adjusting the cam relatively to the rod to throw it into or out ofoperative connection therewith, substantially as set forth.

18. The combination of two separate sets of nail-channels, two separatesets of stops for opening and closing these channels, rods to whichthese stops are connected, cams for operating these rods, means foroperating the cam to actuate the stops for one set of channels, andconnections between this cam and the cam which actuates the stops forthe other set of channels, substantially as set forth.

19. The combination of a nail-channel, a pointer or finger forseparating the nails in the channel, a hanger to which the pointer issecured, means for adjusting the pointer transversely to its axis in thehanger, and a bar to which the hanger is secured, substantially as setforth.

20. The combination of a nail-channel, a pointer, a hanger or frame inwhich it is mounted, a bar to which the frame orhanger is pivotallyconnected, and. a spring for holding the hanger in its normal position,substantially as set forth.

21. The combination of a series of nail-channels, a series of pointersadapted to separate the nails in the channels, a reciprocating bar towhich the pointers are connected, an arm engaging this bar to actuateit, a series of stops for opening and closing the nailehannels, and acam for actuating said stops, substantially as set forth.

22. In a box-nailing machine, the combination of a series ofnail-channels, a series of tubes to which nails from the channels aredelivered, cross-bars having recesses for supporting these tubes, andmovable caps for holding the tubes in the recesses, substantially as setforth.

WILLIAM S. DOIG.

Witnesses:

J AS. S. WARNER, NAT. BARR.

